Attachment for spfjng



Jan. 13, 1931. w. TAET ET AL 1,789,058

ATTACHMENT FOR SPRING BEARD NEEDLE KNITTING MACHINES Filed May 5, 1927 3 Sheets-Sheet 1 W. TAIT ET AL Jan. 13, 1931.

ATTACHMENT FOR SPRING BEARD NEEDLE KNITTING MACHINES Filed May 5, 1927' 3 Sheets-Sheet 2 INVENTOR'S. /LL /M 771T, FEW/V06 77/21/2 C/I/YWLES/Y 500 77. Y Y 1' Wwfl ATTORNEYS.

Jan. 13, 1931. w. TAIT ET AL 1,789,058

,ATTACHMENT FOR SPRING BEARD NEEDLE KNITTING MACHINES Filed May 5, 1927 :5 Sheets-Sheet s INVENTORS i em J15.

Patented Jan. 13 1931 i UNITED TA E- roF tjcfE WILLIAM T-AmrRANoIs TAIT, JR; Ann cziannnsnman seo'rn; or P HI L' A' fi ELPHIA, PENNSYLVANIA, ASSIGNORS, BY masnnasfiemennrs, T0 HdWARn'HosIERY GOM- 'PANY, OF PHILADEL-P'HIA; PEnnsY'LvAmg A ATTACHMENT non srnme nmien-nnnnnn KNITTING MACHINES Application filed-May 5,

Our invention relates to a new and usefii'l attachnient for a circular. spring beard'ne edle knitting machine of the general type V 7 represented by the'diselos'ure 01' Patent No.

1 ,266,044, whereby an auxiliary yarn feed may-she added to the yarns conventionally knittedby sueh machine'to-forma stocking in timed relation With the knitting of'said conventional yarns to incorporate said auxiliary yarn into theknitting ofseertainspor- Vtions of said stocking asthelatter is? being knitted by said 'I'nachine;

7 To! the above lends, our i'nventi'on consists in p'rovlding an-1'ai1x1l1ary vyarn gu de or feed disposed. in proximity to the needle cylinder of a cirelilar'knittingmach ne, an

auxiliary. yarn; carried thereby, and ineans for actuating said'yarn-feed from and into operative relationjwith respect f to said needle cylinder, comprising a Wheel 'adapted't'o be intermittentlyrotated,'a mechanism acl tnated bythe'fnain driving; shaft. of said 'knitting machine, cams on said "wheelgand means intermediate said yarn feed and said cams :to' raise and lower saidyar'n feed from and into its operativepositionwith resp'eet to" said needle cylinder.

our invention further consists in" providing means for "regulating v the rotation of said cam 'Whe'el tonpredetejrmine' the raising and lowering of saidyarn fee'd'intiine'd relation with the operation of thepatternchain .of the knitting machine, to ermitithe knitting 'of the auxiliary'yarn' carried by said aiixiliaryyarn feed into the desire'df -pre'de, 'termine'd portions'ioi" thestocking being knit Q by said knitting machine.

' for preventing Our invention further; Consists 15f ".Ineans the f accidental rotation nf said cam whe'el;

7' Our il'iventionifurther consists ofjjv'arioiis v 7 other novel "featureso'f co'nstrnctlon and ad i antage fall as claimed. I R z "For the'pu'rpose of illustrating our inven "hereinafter; *describ ed and tio'n'we have shown in the accompanyin drawings a form thereof which is atpre'sent preferred by us, since thesalne'h'as been found in practice to givefsatis'factory vand reliable results, altheuigh it is to'b underyjondthe side Wall:8 .pi-nion" 9"retained by the nut T and meshing,

1927. Serial '1\T0.'188,897.

fstood that the various instrumentalities of Whieh our invention consists can :he variously arranged and' that our invention :is i

not limited to the ,preclse arrangement: and organization of the lnstrumentalities as herein shown and'deseribed. i in the accompanying drawings 2-- Figure 1, represents a=d1 agramn1atic View in side elevation, of springlbeard needle circular knitting machineeq iipped withiou'r novel attachment. r 1

Figure 2, represents a section online:

"of Fig. 1.

oonsona'rion or PEiIitSYINAN-IA I Fignre 3, represents asectionon 11 116343 1 Figure 4, represents a side; elevation of the'cam Wheel controlling the operation (if o ir auxiliary yarn. feed. shown detached.

, Fi ure 5, represents a section on-line 5 -:5o

of Figure 4:.

j (Referring-to the drawings tihieh like reference characters jindicate like parts, 1

l clesignates anauxiliary driving-shaft ,jour- .naIled inf the bearinglhraoket 2 which is secured "by the bolt 3to theside vWall 8 forming part ofthe housing'yof a conventional knitting machine; The "shaft 1 carries a [pinion' which is, retained by the. .collar 5 and which meshes with ,the ,gear 6 fast on "theymain driving'shaftlnot shown) of the knittin machine. "The shaft 1 .projects beand fcarries I fast the fwlftllfthe. gear which isffast on the stlib shaft 14 which is vjournalledinithellower [portion of the pendantIplate-l O .(in Figs. 1 The plate 10 is preferablyintegral With the bearing 2 in which the shaftlis only loosely journalled as will he understood,

from Figure 3. To thefrontoronter.surface of-the gear l3'issuitably secured .a supporting plate orbar 15 having the longitudinal .slot 16 in which is adjustably mounted-the bolt '18 which carries the arm orpawl 17 'which terminates in the pointed front end 1,9, the arm "1-7 being adapted to berecipro bracket 35.

wall 8 of the housin of the machine is secured the deflected racket20 in which is journalled the stub shaft 22 which carries the cam wheel 21 which has the peripheral groove 23, best. seen in Figs. 2 and 5, In the groove'23 are positioned the ca1ns24 and 25 which are of different lengths and which are 'adjustably secured -in position by the bolts 26,in the slots26 in the periphery of; V

' Y notches 64 in the periphery of the can wheel '21, except at certain intervals as hereinafter the wheel 21. r

The wheel 21 is further provided with the outer, annular flange 27, which in conjunction with the ring 28, secured thereto by means of the screws 29, forms a groove 30 in which is guided the link 57 hereinafter referred to. In the groove 23 of the wheel 21 rides the roller 31, which is carried at "the lower extremity of the vertical bar 34,

which is guided in a lateral extension of the bracket 33-secured to the-side wall 8 in any suitable manner. Theupper portion of the bar 34 passes through the upper guide bracket'35, secured to thetop 36 of the machine, housing, as will be understood from Figure 1'. The upper end 37 of the rod 32 carries the, lever 38, the inner end of Which is pivoted at 39 to the supporting i To the outer end of the lever 38 is adjustably secured the auxiliary yarn feed 40, comprising the lower horizontal portion 41, the vertical portion 42, the upper horizontal portion 43, andthe pendant vertical portion 44, which terminates in the horizontal member 45, having the eye therein for receivingan auxiliary yarn not shown." The auxiliary yarn feed 40 is d1s- POSBCl'll'l proximity to and is adapted to'coact with the needle .cylinder 40 of the knitting niachine. 46 designates the sprocket wheel of a knitting machine of this type mounted on the shaft 46 and actuated from" the main drivingshaft (not shown) in the usual manner to drive the conventional sprocket pattern chain 47, composed of plain links 47 and the suitably spaced pattern links 48 having the "outwardly projecting lugs or cams 49. The lever 50, suitably piV- I oted at 51*a'nd provided with the lug 65" is constantly: pressed inwardly against. the sprocket chain '47 on the'sprocket wheel 46 by means of the'spring 52. As the pattern links 48 pass the lever 50, the lugs 49.0f said 'patternlinks and the lug 65 .of said lever coact to "displace the lever at intervals predetermined by the spacing of the pattern links 48 forming part of the sprocket chain 47, function and operation of which are con ventional and form no part of the present invention. To the upper end of the lever 50 is secured the bent portion .58 of the horizontally extending link 57, whichis guided inthe groove 30, best seen in Figure 5. To the rear and front ends of the link 57 are secured the springs 59 and 58 which serve to maintain saidlink seated in the groove 19thereof idlin'g ov'er the cam 30 (see Fig. 1). 60 designates a lever rigidly secured to the wall 8 at 61 and carrying at its front end the brake shoe 62, which is ficient height normally to prevent the terininal 19 of the pawl 17- from engaging the described.

The operation is as follows z The gear 6 driven in the direction of the arrow 116 by the main drivingshaft .(not

shown) revolves the shaft 1 loosely journalled in the bearing bracket2 to revolve the pinion 9 in the direction of the arrow.

117 which in turn drives the gear 13 in the directionof the arrow 118, said gear 13 beingloose on the'stub shaft'14' which is journalledin the stationary pendant plate 10. WVith each revolution of the gear'13 the arm 17 eccentrically carried by said gear is reciprocated withthe deflected pointed end I I 6316f the link 57 which norinally' registers with theju'xtaposed notch 64 of the cam wheel 21 to. preventthe engagement of the pointed end 19 "of the arm 17, fron engaging said notch'64 and revolving the cam wheel 21 The link 57 is retained in the groove 30 with the cam 63 thereof registering with the notch 64 of the cam wheel 21 byfmeans of the springs 58" and 59 best seen in' Figure :11; Thefrontend 58' ofthe link 57 is connected to the front end of the conventional lever "50 which is pivoted at 51 (positioned on the inner side ofthe sidewall 8 of the machine, see liigure f2): 1 The lever 50 is pr'ovided with the i.n- "wardly projecting lng65 which coacts wlth the outwardly projecting lugs 49 on .the spaced conventional patternlinks 48 forming part of the conventionahpattern' chain 47 which engages the conventional sprocket A wheel 46. jAsthe lug 65 of the lever .50 rides over the lug 49 of a conventional pattern link 48, the lever 50 is. pushed out wardly or forwardly. "Simultaneously with p the forward displacement ofthe lever 50, thelink 57-is pulled forward against the tensionof the springs 58* and 59 to move the cam '63 out of'registration with the juxtaf V posed notch 64 .of the cam-wheel 21 thus permitting the pointed end 19 of the lever' 17 reciprocated by the revolution ofthe gear 13 t0 engage the juxtaposed notch 64 of the camwheel 21to revolve the latter in the directionof the arrow 119 adistance equal to the stroke of the lever17 which is equal. to the space'between the notches 64'as will; beunderstood from Fig. 1. WVhen'the lug 65 of the lever 50 falls off the lug 49' of the juxtaposed pattern link; 48, the link 57 ispulled back by the *spri'ngs'58 and 5,9 to

7 bring the cam 63 thereof into registration the lug 65 of with the juxtaposed notch. 64 of the cam wheel 21 to prevent the further engagement of the front end 19 of the arm 17 with said notch 64 thereby to prevent the revolution of the cam wheel 21 until the parts are again in the position shown in Fig. .1. WVhen'the cam wheel 21 has been sufficiently revolved, the roller 31 at the bottom of the bar 34 will ride on the cam 24 (see Fig. 1) thus raising the auxiliaryyarn feed from operative relation with respect to the needle."

cylinder 40 of the knitting machine thereby discontinuing the knitting of the auxiliary yarn into the portion of the stocking being knit while the roller 31 continues to ride on the cam 24 while the wheel 21 is being inter-f mittently revolved as explained. This position of the parts is'maintained until the wheel 21 shall have been revolved through an are equal to the length of the cam 24 by the repeated engagement of the pointed end 19 of the lever 17 with the spaced notches 64 of the cam wheel 21 when the link 57 is in its forward position due to the riding of the lever over the lugs 49 of the successive pattern links 48, whereupon the roller 31 falls off the cam 24 into the groove 23 in the periphery of the cam wheel 21, thereby lowering the auxiliary yarn feed 40 into operative relation with respect to the needle cylinder40" of the knit-Q ting machine to permit the knitting of-the auxiliary yarn carried by said auxiliary yarn feed into the portion of the stocking being knitted while the roller 31 is in the groove 23 intermediate the cams 24 and 25. The roller 31 now remains in the groove 23 until the cam Vwheel 21 shall have been further revolved in the manner heretofore described, whereupon the roller 31 rides over the short cam 25 in the groove 23 and again raises the bar 34 and the auxiliary V yarn feed 40 to discontinue the knitting of the auxiliary yarn carried by said yarn feed into the stocking. L

From the foregoing it will be seen that the cam wheel 21 can only be revolved when the link 57 is pulled forward due to the riding of the lug of the lever 50 over one of the lugs 49 "of the pattern links 48 and that by properly spacing the patternlinks 48 as well as the notches 64 in the periphery offthe cam wheel 21 the rotation of said cam wheel may be regulated and controlled to correspond with the main knitting operation to, raise and lower the auxiliary yarn feed 40- .in proper timed relation to knit the auxiliary yarn carried by the auxiliary yarn feed, 40 into predetermined portions of thestocklng being knit by said machine. In order to prew vent the accidental rotation of the cam wheel 21, we provide the arm 60. fulcrumed at 61 and carrying the brake shoe 62which frictionally engages the inner surface of the mamnwheel 5.221 :to;.maintaiins'theslatter trier-1 ;mal'ly' ="stationagryi" V I v l :Haningihusndescribed .our' invention -what vweiclaimzasr new and: desiretoisecure hYLGtrtersEP-atent,t:isz.

lsrInxa: spring ibeard :needle: .-k-ni-ttin,g l

V iichine,.s a' ,Fyarn c-feedzadapted to carry a yarn 1eamsi'andasaid.zyarnifeediforxoperatingi the :latter; anidfzmeans 2 forintermittently: actuatvngfi idlratchetiwheel.

chine'na yarnzzfeed.adaptable-toeearryzia yarn --auxiliary to. the I conventional 'mainzyarnytmd V :m-eansi for actuating saidiyl-arn feed .intoza'nd out 'ofitlie:operative-position rwith respectqto itlfle; un'eed-le cylinder-:pfx said irknitting 1 machine.toeknit:saidiauxiliary ayarnrintog predeiterminedaportions.::of :athe stockin -liming '2 .knitted ,sfby said machine scomprising 35a .agrooverl nratclret wheel,

i cams of different i'len'gths .positioned in the -;';groove of --said iwheel, 3 means roperati vely :Jconnecting s'aid Lyarnrfeedfifor controlling the latter,'ismeans for wintermittently,z-iactuating 5 said ratchetfiwheehar-andrmeans for: intermititently sretai'ning said :riatchet wheel station- 3. ;In'ra':springi'beardineedle knitting maichine p atryarn "a feed adapted-to zcarr y ;-;a; ,yam .zanxiliarygto.theconventionalimain *yarn, and

means for:- aetiratingisaidiyarn ifeed 'flILtOiilIld.

--outo*f. oper-ative relation with respect 'to the slati'onl'with':the1-knitting :ofvthe ing knit by said nnachine, v ripherally grooved ratchet ";wheel,' spaced 7 stotzkingYbet1ming.:cams "dilf'erentrlengths positioned 1nthe-groove1ofrsardrswheekrmeans for lntercomprising a ape:

-need'le 'cylinderofrJsaidsmachine-;in timedaremittently rotating said ratchet wheel, and-' means operatively interposed between said ratchet wheel and said yarn feed adapted to V p raise and lower said yarn feed to permit the knitting of the auxiliary yarn carried by said yarn feed into predetermined 1 portions of the stockingbeing knit by said machine; and to suspend the knitting of saidyarnfeed I during the knitting of other predetermined portions of said stocking.

i 4. In a spring beard needle knitting machine, a yarn feed adapted to carry a yarns auxiliary to the conventional main yarn, and means for intermittently actuating said yarn feed into and out of operative relation with respect to the needle cylinder of said knit ting machine, comprising a ratchet wheel a having a peripheral groove therein; means for intermittently revolving. *said ratchet wheel; spaced timing camsof different lengths positionedin said groove, a 'roller guided in said groove adapted'to ride on said cams successively as said ratchet wheel is revolved, and means intermediate said roller and said auxiliary yarn feed to raise the latter into inoperativeposition with respect to the needle cylinder of saidmachine, T p to suspend the knitting of the auxiliary yarn'carried by said. yarn feed during the knitting'of predetermined portions of the i stocking being knit-by saidmachindaavhile said roller is on one or the other of said cams.

5. In a spring beard needle knittingmaa f chine, a yarn auxiliary tothe conventional inainyarn feed adaptedtocarry a yarn, and means for intermittently actuatingsaid yarn feed into and out of operative: relation-with respect. to the needle cylinder of said knitting machine,.-to knit or tosuspend the-knitting of said auxiliary yarn :into predetermined portions of the stocking being knit by said machine; comprising a ratchet wheel having an inner peripheral groove and an 7 outer peripheral groove, timing cams of dif- .ferent lengths xposltioned m isald inner groove, a roller guided in said groove and adapted to ride on said cams when said ratchet Wheel i'srevolveld; a pawl adapted intermittently. t0 'engaggfland' revolve said ratchet Wheel, a link guided in said outer groove having an upper cam-adapted nor 'mally to prevent the engagement of said pawl With said ratchet Wheel, means adapted to displace said link in timed relation with the knitting operation or thestocking to I permit'the engagement of said pawl with said ratchet wheel to revolve the latter, and fmeans intermediate said roller and said yarn feed adapted to raise thelatterout of opera- ,7

tive relation with. respect to the 'needlecylinder of said machine While said roller is riding over'one of said cams. -WILLIAMTAIT.

. FRANCIS. TAIT, JR.

- CHARLES AULD. SCOTT; 

